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North Norfolk - 2025 Sewage

Polluted by sewage 3,073 hours in 2025 , monitoring offline 9,387 hours , potential overflows 8 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

Which Year?

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✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in North Norfolk for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Constituencies near North Norfolk

Daily Data

Jan - 241 hours
Feb - 68 hours
Mar - 7 hours
Apr - 14 hours
May - 82 hours
Jun - 27 hours
Jul - 165 hours , 276 offline
Aug - 20 hours , 1,488 offline
Sept - 45 hours , 1,440 offline
Oct - 169 hours , 1,545 offline
Nov - 1,747 hours , 2,224 offline
Dec - 483 hours , 8 potential
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
Please note: We don't have rainfall data for Wales. If you know where to source it please let us know!
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Anglian Water Cromer STW North Sea 73 730h 11m 57 h
Anglian Water Mundesley-Knapton Road WRC North Sea 58 633h 4m -
Anglian Water Erpingham - Calthorpe Bridge Terminal Pumping Station Scarrow Beck 33 575h 52m 2,779 h
Anglian Water NORTH WALSHAM STW Dilham Canal 23 505h 45m -
Anglian Water HORNING-KNACKERS WOOD STW River Ant 21 358h 34m -
Anglian Water Cromer STW North Sea 13 67h 12m -
Anglian Water Erpingham - Calthorpe Bridge Terminal Pumping Station Scarrow Beck 8 51h 59m -
Anglian Water Mundesley-Knapton Road WRC North Sea 10 38h 39m 8 h
Anglian Water ALDBOROUGH-THWAITE HILL FM STW Scarrow Beck River Bure 6 36h 7m -
Anglian Water BRISTON STW River Bure 2 8h 48m -
Anglian Water Promenade Sewer Storage Tank North Sea 15 7h 13m 3,062 h
Anglian Water BRISTON STW River Bure 6 6h 29m -
Anglian Water LANGHAM STW (NORFOLK) River Stiffkey 3 6h 27m -
Anglian Water MELTON CONSTABLE-BURGH BECK SP River Glaven 4 5h 23m -
Anglian Water NORTH WALSHAM STW Dilham Canal 1 4h 59m -
Anglian Water LANGHAM STW (NORFOLK) River Stiffkey 1 4h 44m -
Anglian Water MELTON CONSTABLE-BURGH BECK SP River Glaven 1 4h -
Anglian Water STALHAM STW River Ant 1 3h 59m -
Anglian Water West Runton Water Lane Pumping Station North Sea 4 3h 30m -
Anglian Water STALHAM STW River Ant 1 2h 59m -
Anglian Water West Runton Water Lane Pumping Station North Sea 1 2h 44m -
Anglian Water East Runton Beach Road Terminal Pumping Station North Sea 3 2h 39m -
Anglian Water STALHAM-MILL ROAD TPS Stalham Dyke 2 2h 35m -
Anglian Water Sheringham East Beach Sewage Tank North Sea 3 2h -
Anglian Water GIMINGHAM-NR MILL TPS Mundesley Beck 9 1h 58m -
Anglian Water Holt Main Road WRC River Glaven 2 1h 45m -
Anglian Water North Walsham-Bluebell Road Combined Sewer Overflow River Ant 3 1h 45m -
Anglian Water Holt Main Road WRC River Glaven 2 1h 14m -
Anglian Water GIMINGHAM-NR MILL TPS Mundesley Beck 1 0h 23m -
Anglian Water Cromer Promenade Terminal Pumping Station North Sea 0 0h -
Anglian Water GREAT WALSINGHAM STW River Stiffkey 0 0h -
Anglian Water North Walsham-Bluebell Road Combined Sewer Overflow River Ant 0 0h -
Anglian Water HORNING-KNACKERS WOOD STW River Ant 0 0h -
Anglian Water NORTH WALSHAM STW Unknown River Ant 0 0h -
Anglian Water WELLS-FREEMAN ST OV Unnamed Marsh Dyke North Sea 0 0h -
Anglian Water LUDHAM-WOMACK STAITHE TPS Un Womack Water 0 0h 0 h
Anglian Water WELLS-FREEMAN STREET STW Wells Creek 0 0h -
Anglian Water Mundesley - The Prom Pumping Station North Sea 0 0h -
Anglian Water TRIMINGHAM-RESERVOIR OV River Mun 0 0h -
Anglian Water WELLS-FREEMAN ST OV Unnamed Marsh Dyke North Sea 0 0h 1,162 h
Anglian Water Sheringham East Beach Sewage Tank North Sea 0 0h -
Anglian Water WELLS-FREEMAN STREET STW Wells Creek 0 0h 1,162 h
Anglian Water ALDBOROUGH-THWAITE HILL FM STW Scarrow Beck River Bure 0 0h -
Anglian Water Cromer Promenade Terminal Pumping Station North Sea 0 0h -
Anglian Water GREAT WALSINGHAM STW River Stiffkey 0 0h -
Anglian Water WEYBOURNE-BEACH LANE SP Pond To To Weybourne Hope 0 0h -
Anglian Water TRIMINGHAM-RESERVOIR OV River Mun 0 0h -
Anglian Water STALHAM-MILL ROAD TPS Stalham Dyke 0 0h -
Anglian Water LUDHAM-WOMACK STAITHE TPS Un Womack Water 0 0h -
Anglian Water Promenade Sewer Storage Tank North Sea 0 0h 1,162 h
Anglian Water NORTH WALSHAM STW Unknown River Ant 0 0h -
Anglian Water East Runton Beach Road Terminal Pumping Station North Sea 0 0h -
Anglian Water MUNDESLEY-DELL CHALET PK OV River Mun 0 0h -

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.

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© Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2025,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

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